<!DOCTYPE html>
<html class="reftest-wait">
  <style type="text/css" media="screen, print">
    @font-face {
      font-family: "dtls-1";
      src: url(../fonts/math/dtls-1.otf);
    }
  </style>
  </head>
  <body>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true"  id="mover0">
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true">
        <mo>a</mo>
        <mo id="mo0"></mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true">
        <mo>a</mo>
        <mo id="mo1">a</mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';" id="mstyle0">
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle id="mstyle1">
      <mover accent="true">
        <mover accent="true">
          <mn>a</mn>
          <mn>a</mn>
        </mover>
        <mover accent="true">
          <mn>a</mn>
          <mn>a</mn>
        </mover>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true">
        <mrow>
          <mrow>
            <mrow id="mrow0">
            </mrow>
          </mrow>
        </mrow>
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

 <p>

  <math>
    <mstyle id="mstyle4" style ="font-family: 'dtls-1'; font-feature-settings: 'dtls' 0">
      <mover accent="true">
        <mover accent="true">
          <mo>a</mo>
          <mo>a</mo>
        </mover>
        <mover accent="true">
           <mo>a</mo>
           <mo>a</mo>
        </mover>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle id="mstyle5" style ="font-family: 'dtls-1';">
      <mover accent="true">
        <mover accent="true">
          <mo>a</mo>
          <mo>a</mo>
        </mover>
        <mover accent="true">
           <mo>a</mo>
           <mo>a</mo>
        </mover>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover id="mover1">
        <mo>a</mo>
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true" id="mover2">
        <mo>a</mo>
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true" id="mover3">
        <mo>a</mo>
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true">
        <mo id="mo2">a</mo>
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

  <p>

  <math>
    <mstyle style="font-family: 'dtls-1';">
      <mover accent="true">
        <mo id="mo3" movablelimits="true">a</mo>
        <mo>a</mo>
      </mover>
    </mstyle>
  </math>

    <script>
      function doTest()
      {
        var mo = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mo");
        mo.innerHTML = "a";
        // An added child gets dtls font feature
        document.getElementById("mover0").appendChild(mo);
        // A child with changed text gets dtls font feature
        document.getElementById("mo0").innerHTML = "a";
        // A relocated child loses dtls font feature setting
        document.getElementById("mstyle0").appendChild(document.getElementById("mo1"));
        // A change in style
        document.getElementById("mstyle1").setAttribute("style", "font-family: 'dtls-1';");

        // dtls gets added to descendants as well
        var mo1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mo");
        mo1.innerHTML = "a";
        document.getElementById("mrow0").appendChild(mo1);
        // removing explicit dtls setting works
        document.getElementById("mstyle4").setAttribute(
          "style", "font-family: 'dtls-1';")
        // setting an explicit dtls font feature
        document.getElementById("mstyle5").setAttribute(
          "style" , "font-family: 'dtls-1'; font-feature-settings: 'dtls' 0");

        // Adding accent="true" applies dtls font feature
        document.getElementById("mover1").setAttribute("accent", "true");
        // Changing accent="true" to false removes dtls font feature
        document.getElementById("mover2").setAttribute("accent", "false");
        // Removing accent="true" removes dtls font feature
        document.getElementById("mover3").removeAttribute("accent");

        // Movablelimits disables dtls font feature
        document.getElementById("mo2").setAttribute("movablelimits", "true");
        // Removing movablelimits restores dtls font feature
        document.getElementById("mo3").removeAttribute("movablelimits");

        document.documentElement.removeAttribute("class");
      }
      window.addEventListener("MozReftestInvalidate", doTest, false);
    </script>
  </body>
</html>
